The number of people after n years is calculated through the equation,
An = (Ao)(1 + r)^n
where An is the population after n years, Ao is the initial population and r is the rate. Substituting the known values,
420 = (380)(1 + 0.03)^n
The answer is letter A.
6×3=18 feet.This is the answer
I thought you said these problems were all different. They look exactly the same to me.
<span>Figure the volume of one of the small blocks, and use that to divide into the whole volume. </span>
<span>3 1/4 = 13/4 so the box has a volume of 13/4 * 3 * 1 = 39/4 ft^3 </span>
<span>each small block has a volume of (1/4)^3 = 1/64 ft^3 </span>
<span>(39/4) / (1/64) = 624
Hope this helps love.
-Joker7721
This is the explanation.</span>
Answer:
3 quarts
Step-by-step explanation:
First, find how many quarts of antifreeze is in the mixture.
0.4 x 6 = 2.4
Now, make it into a fraction by putting the antifreeze amount over the rest so:
2.4/6
Now add + a at the end of the numerator and bottom to make:
2.4 + a/ 6 + a.
Now, turn the percentage you want to strengthen or weaken the mixture into a percentage. So, 3/5.
Now, make it an expression by adding = 3/5 at the end of the equation.
2.4 + a/ 6 + a = 3/5
Now, use cross multiplication.
12 + 5a = 18 + 3a
Now, solve the equation.
12 + 5a = 18 + 3a
-3a. -3a
12 + 2a = 18
-12. -12
2a = 6
/2. /2
a = 3.
Therefore, the answer is 3 quarts.
